Base | Representation |
---|---|
bin | 11101111110101110110… |
… | …10011011001001001111 |
3 | 10122110220012222111012020 |
4 | 32333113122123021033 |
5 | 113334131432241421 |
6 | 2105120534141223 |
7 | 134265054555312 |
oct | 16772732331117 |
9 | 3573805874166 |
10 | 1030111212111 |
11 | 36795aa19263 |
12 | 1477861b1813 |
13 | 761a66cb907 |
14 | 37c01560979 |
15 | 1bbe000bdc6 |
hex | efd769b24f |
1030111212111 has 32 divisors (see below), whose sum is σ = 1491676401600. Its totient is φ = 629915719680.
The previous prime is 1030111212103. The next prime is 1030111212121. The reversal of 1030111212111 is 1112121110301.
It is not a de Polignac number, because 1030111212111 - 23 = 1030111212103 is a prime.
It is a super-2 number, since 2×10301112121112 (a number of 25 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1030111212121) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1179796 + ... + 1857993.
It is an arithmetic number, because the mean of its divisors is an integer number (46614887550).
Almost surely, 21030111212111 is an apocalyptic number.
1030111212111 is a deficient number, since it is larger than the sum of its proper divisors (461565189489).
1030111212111 is a wasteful number, since it uses less digits than its factorization.
1030111212111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3037979.
The product of its (nonzero) digits is 12, while the sum is 15.
Adding to 1030111212111 its reverse (1112121110301), we get a palindrome (2142232322412).
The spelling of 1030111212111 in words is "one trillion, thirty billion, one hundred eleven million, two hundred twelve thousand, one hundred eleven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.072 sec. • engine limits •